US2498994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad journal bearing
Assignee: Individual
•
Filing: 1944-10-16
•
Granted: 1950-02-28
•
Expires: 1964-10-16
Abstract
No abstract record available.
Inventors
- 👤 James J Laudig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:34
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/02; B61F15/06; Y; Y10; Y10S; Y10S33/00; Y10S33/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US6502A
Cited
US128002A
Cited
US141350A
Cited
US420951A
Cited
US1176603A
Cited
US1475378A
Cited
GB238435A
Cited
US1892180A
Cited
US2220717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |